3-(Bromomethyl)-4-cyano-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
6-(Bromomethyl)-2-fluoro-4-iodo-3-(trifluoromethoxy)pyridine
3-(Bromomethyl)-4-cyano-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-Fluoro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetic acid